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Organic Gardening: Organic spray for tomatoes

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Forum: Organic GardeningReplies: 2, Views: 74
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(Zone 9b)

July 26, 2009
10:26 PM

Post #6868523

Organic Spray for Tomatoes
1, Tomato Leaf:
The Nightshade family plants, tomatoes, potatoes and tobacco, have toxic alkaloids in their leaves. These toxins are water soluble and can be extracted from chopped leaves and made into home-made sprays. These sprays also work by attracting natural pest enemies. The good bugs follow the smell of the spray in looking for prey.
Tomato leaf sprays have been used to protect plants from aphids. Also, spraying tomato leaf spray on corn may reduce corn earworm damage. The corn earworm a.k.a. tomato fruitworm, because it also attacks tomato plants. A scientific study has shown that corn plants sprayed with tomato leaf spray attracted significantly more Trichogramma wasps to parasitize the corn earworm eggs than the unsprayed did.
How to Make:
Soak 1 to 2 cups of chopped or mashed tomato leaves in 2 cups of water overnight. Strain through cheescloth or fine mesh, add about 2 more cups of water to the strained liquid, and spray. For aphid control, be sure to thoroughly cover the leaf undersides, especially of lower leaves and growing tips of plants where aphids congregate.

How to Use: Spray plants thoroughly, particularly undersides of lower leaves and growing tips where aphids congregate. While this spray is not poisonous, use care in handling, especially if you are allergic to the nightshade family.

(Zone 9b)

July 26, 2009
10:45 PM

Post #6868581

2. Powdery Mildew
Sulfur is effective to combat powdery mildew. Garlic naturally contains high levels of sulphur and a few cloves crushed in water can be used to make a homemade spray. Pass it through a sieve and spray. Apply a sulfur-based fungicide at first evidence of mildew and repeat the applications if the mildew continues.

It is more effective if you apply as soon as the symptoms appears.

However, sulfur can be damaging to some SQUASH and MELON varieties.

Spray once a week with a solution of baking soda. Baking soda increases the surface pH of the leaf making it unsuitable for the growth of powdery mildew spores. Be sure to spray the undersides of leaves as well as the upper surfaces when using any of these sprays.

Here's a recipe to make your own spray:
1 teaspoon baking soda
1 lt. water
a few drops of liquid soap
(Zone 9b)

August 1, 2009
10:07 PM

Post #6895027

For Blossom end rot is a disorder that affect tomatoes, capsicums, eggplants, watermelons and zucchinis. It appears in acid soils, or when there is improper watering.
using too much fertilizer (nitrogen and potassium) and a great lack of calcium.

Add crushed eggs shell to the soil and made a calcium foliar spray (simmered eggshell in water = crushed egg shell finely and simmer for 5 to 10 minutes, pass through a sieve ) The crushed shell you can distributed in the bed or added to the compost heap.

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